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Question
Which of the following statements are true and which ones are false? Give reason in support of your answer.
Most transpiration occurs during midday.
Options
True
False
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Solution
True
Reason: During the day, the stomata are open to facilitate the inward diffusion of carbon dioxide for photosynthesis. During mid-day, the outside temperature is higher, due to which there is more evaporation of water from the leaves. Therefore more transpiration occurs during mid-day.
RELATED QUESTIONS
Fill in the blank with the suitable term given below:
Transpiration is reduced if the air is __________.
Given below is an example of a certain structure and its special functional activity:
Chloroplasts and Photosynthesis.
In a similar way, write the functional activity against each of the following:
Thick cuticle and ………………………..
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List two adaptations in plants to reduce the above process.
Give Reasons for the following:
Balsam plants wilt during midday even if the soil is well watered.
The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental set-up was placed in bright sunlight. Study the diagram and answer the following questions:
- Name the process intended for the study.
- Define the above mentioned process.
- When the weight of the test tubes (A and B) is taken before and after the experiment, what is observed? Give reasons to justify your observations in A & B.
- What is the purpose of keeping the test tube B in the experimental set-up?
- What is the purpose of putting oil in the test tube?
Name the following:
Holes present on the surface of the stems and twigs for transpiration.
Give Technical Term
The apparatus used to compare the rate of transpiration in cut shoot.
Complete the following sentence with appropriate word:
Transpiration is the loss of water__________________from the leaves of the plant.
Complete the following sentence with appropriate word:
The leaves of the __________ plants have cuticular wax.
Choose the Odd One Out
